All very good survival items and most, if not all were listed, but the best advice I can give you is first pick up anything that will help with water purification, tabs, portable straw units and filters, bleach and charcoal. Second, I do not know what part of the country you live in, but if its anywhere here in the southern states you better have lots of bug dope, Deep Woods Off works and anything with Deet, as mentioned by Jeff. Last thing, as mentioned by BKT, do not limit the size of your survival pack. Make several packs, most people will not be alone and your family will help carry the others, if not, depending on where you are at, there are always pack horses or mules, you can commender, even a big dog can be outfitted to carry.
"There is no hunting like the hunting of man, and those who have hunted armed men long enough and liked it, never care for anything else thereafter." - Hemingway
“The greatest ignorance is to reject something you know nothing about.”